For comparison, here is the style that is quite dominant in USA, UK, and maybe Australasia - It’s called the Sash Window it’s mostly single glazed in my experience and quite low security.
There are counterweights hidden inside the frame that cancel the weight of the frame, so that it opens easily and stays in the place you left it.
(UK) I see these in older buildings, but usually newer building have the windows from the post, or simpler swinging ones. I’ve never seen a new-looking window of the sliding design.
For comparison, here is the style that is quite dominant in USA, UK, and maybe Australasia - It’s called the Sash Window it’s mostly single glazed in my experience and quite low security. There are counterweights hidden inside the frame that cancel the weight of the frame, so that it opens easily and stays in the place you left it.
(UK) I see these in older buildings, but usually newer building have the windows from the post, or simpler swinging ones. I’ve never seen a new-looking window of the sliding design.